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@ARTICLE{Dickheuer:864066,
      author       = {Dickheuer, Sven and Marchuk, Oleksandr and Tsankov, Tsanko
                      Vaskov and Luggenhölscher, Dirk and Czarnetzki, Uwe and
                      Gromelski, Wojciech and Ertmer, Stephan and Kreter, Arkadi},
      title        = {{M}easurement of the {M}agnetic {F}ield in a {L}inear
                      {M}agnetized {P}lasma by {T}unable {D}iode {L}aser
                      {A}bsorption {S}pectroscopy},
      journal      = {Atoms},
      volume       = {7},
      number       = {2},
      issn         = {2218-2004},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2019-03975},
      pages        = {48 -},
      year         = {2019},
      abstract     = {Tunable diode laser absorption spectroscopy (TDLAS) is a
                      commonly used technique to measure the temperature and
                      density of atoms or molecules in a gas. In this work, we
                      demonstrate that the TDLAS diagnostics could be effectively
                      applied to measure the magnetic field in a low-density
                      weakly magnetized plasma using the Zeeman splitting of the
                      absorption spectrum of lines from noble gases. The laser
                      wavelength is tailored to fit the 1s5→2p6 transition of
                      atomic Ar with the wavelength λ=763.51nm . Two mechanisms
                      of line broadening and splitting are observed: Doppler
                      broadening and Zeeman effect. The latter is especially
                      pronounced by applying polarization-selective observation of
                      the absorption to the TDLAS measurements. By fitting the σ
                      and π components of the absorption spectrum, the
                      line-integrated magnetic field on the order of 30–50 mT is
                      determined. The agreement between the measured values and
                      the vacuum field (neglecting the impact of the plasma)
                      calculations on the axis of the PSI-2 is found to be about
                      $15–20\%$},
      cin          = {IEK-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000474935800010},
      doi          = {10.3390/atoms7020048},
      url          = {https://juser.fz-juelich.de/record/864066},
}